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Vulnerability · Published Sep 17, 2026 · Assigned by Linux

CVE-2026-90421PCI: Fix UAF when probe runs concurrent to dyn ID removal

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 89.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: PCI: Fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when dynids.lock is held, as remove_id_store() can free the node. Thus, make a copy in pci_match_device(). Also, clarify that the id parameter is only valid during probe.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-90421
Debian:13linux6.12.115-2DEBIAN-CVE-2026-90421
Debian:14linux7.2.6-1DEBIAN-CVE-2026-90421
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-90421
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-90421
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-90421
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-90421

Affected products (as reported)

VendorProductVersions
Linux Linux 0994375e9614f78657031e04e30019b9cdb62795 – before 74133e74619d108eeaaa787d78906314d7a7b0770994375e9614f78657031e04e30019b9cdb62795 – before d867db0a2602919510f346bc555f7b3093f6b6cc0994375e9614f78657031e04e30019b9cdb62795 – before 2cbcb0819c6367e1d5b0792a960594cc19576e230994375e9614f78657031e04e30019b9cdb62795 – before c36816feff47f676dcc51919777d483f4146c1ee0994375e9614f78657031e04e30019b9cdb62795 – before 42a5661ff7e4c7d3c5025d0f8e5079fb5479ea490994375e9614f78657031e04e30019b9cdb62795 – before 3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc
Linux Linux 2.6.30

References